Synonyms of “deteriorating” include “worsening”, “declining”, and “degenerating”.
“Worsening” emphasizes a progressive negative change. For example, “The patient's condition is worsening day by day.” It implies that a situation is becoming more severe or unfavorable over time. Just as a storm might worsen from a light rain to a heavy downpour, “worsening” describes an increase in the intensity or seriousness of a condition.
“Declining” often refers to a gradual decrease or loss. For instance, “The economy is in a state of decline.” It can imply a drop in quality, quantity, or value. In the context of deteriorating, “declining” suggests a slow but steady slide downward. It's like the fading of a beautiful flower as it declines in freshness and vitality.
“Degenerating” implies a more serious and often irreversible decline. For example, “The disease caused his body to degenerate rapidly.” It suggests a breakdown or decay at a fundamental level. It's as if something is losing its essential structure or integrity and becoming worse in a fundamental way.
In summary, these synonyms all describe the process of something becoming worse. Whether it's a worsening situation, a declining state, or a degenerating condition, they all convey the idea of a negative change and a move away from a better state.